Unit1 语法讲解及习题：频度副词+一般现在时 2025-2026学年北师大版七年级英语下册

北师大版英语七下 Unit1 语法讲解及习题 频度副词 + 一般现在时 一、频度副词（Adverbs of Frequency） 1. 含义 表示动作发生的频率、习惯性，常和一般现在时连用。 2. 常见频度副词（按频率从高到低） 单词 意思 频率 always 总是 100% usually 通常 约80% often 经常 约60% sometimes 有时 约40% seldom 很少 约20% never 从不 0% 3. 位置规则（必考） be 动词 / 情态动词之后 He is always careful. I am never late. 实义动词之前 I usually get up early. She often helps her mother. sometimes 可放句首、句中、句末 Sometimes I go to the park. I sometimes go to the park. I go to the park sometimes. 4. 对频率提问 一律用：How often（多久一次） — How often do you exercise? — Every day. 二、一般现在时（表习惯、经常性动作） 1. 三种用法 表示经常性、习惯性动作 I get up at 6 every morning. 表示客观事实、真理 The sun rises in the east. 表示现在的状态、爱好、能力 He likes music. 2. 句子结构 句型 主语非三单（I/you/we/they） 主语三单（he/she/it） 肯定 动词原形 动词三单（-s/-es） 否定 don’t + 动词原形 doesn’t + 动词原形 一般疑问 Do + 主语 + 动词原形…? Does + 主语 + 动词原形…? 3. 动词第三人称单数变化规则 一般加 -s：work → works，like → likes 以 s, x, ch, sh, o 结尾加 -es： watch → watches，go → goes，pass → passes 辅音字母 + y → 变 y 为 i 加 -es： study → studies，fly → flies 不规则：have → has 4. 重要提醒 doesn’t / don’t 后面一律用动词原形 用了 Does 提问，后面动词必须变回原形 三、练习题 单项选择 1. I ___________ late for school. A. am never B. never am C. is never 2. My brother ___________ basketball after school. A. sometime play B. sometimes plays C. sometimes play 3. He ___________ up at 6:00 every morning. A. get B. gets C. getting 4. ___________ your mother ___________ TV in the evening? A. Do; watch B. Does; watches C. Does; watch 5. We ___________ computer games on school nights. A. don’t play B. doesn’t play C. not play 6. She is a good student. She is ___________ late for class. A. always B. usually C. never 7. My dad ___________ to work by bike. A. usually go B. usually goes C. goes usually 8. —___________ do you go to the library? —Twice a week. A. How often B. How long C. How 9. The earth ___________ around the sun. A. go B. goes C. went 10. Jim ___________ his homework at school. A. doesn’t do B. don’t do C. doesn’t does 11. She ___________ English every morning. A. read B. reads C. reading 12. They ___________ to school on foot. A. often go B. often goes C. go often 13. —___________ he often help his parents? —Yes, he does. A. Do B. Does C. Is 14. My sister ___________ like milk. A. don’t B. doesn’t C. isn’t 15. I ___________ hungry after school. A. am often B. often am C. is often 用所给动词的适当形式填空 1. I usually ___________ (get) up at 6:30. 2. My father ___________ (drive) to work every day. 3. They ___________ (not watch) TV on weekdays. 4. ___________ your sister ___________ (play) the piano? 5. He seldom ___________ (go) to bed late. 6. We often ___________ (play) basketball after school. 7. She ___________ (not have) breakfast at home. 8. The child ___________ (like) ice cream. 9. My mother ___________ (cook) dinner every evening. 10. ___________ you often late for school? 句型转换 1. I usually walk to school.（否定句） I ___________ usually ___________ to school. 2. He often plays basketball.（一般疑问句） ___________ he often ___________ basketball? 3. She is never late for class.（对划线部分提问） ___________ ___________ is she late for class? 4. My dad drives to work.（对划线部分提问） ___________ ___________ your dad ___________ to work? 5. They sometimes eat out.（用 never 改写） They ___________ ___________ out. 根据汉语完成句子 1. 我从不迟到。 I am ___________ ___________. 2. 你爸爸通常怎么去上班？ ___________ does your father ___________ go to work? 3. 她周末经常看电影。 She ___________ ___________ to the cinema on weekends. 4. 我们不常在学校吃午饭。 We ___________ ___________ lunch at school. 5. 你多久锻炼一次？ ___________ ___________ do you exercise? 四、答案 + 详细解析 单项选择 1. A 频度副词放在 be 动词之后。 2. B sometimes 是频度副词；主语 my brother 是三单，动词用 plays。 3. B 主语 he 是三单，一般现在时动词加 s。 4. C 主语 your mother 三单，用 Does 提问，后面动词用原形 watch。 5. A 主语 we 复数，用 don’t + 动词原形。 6. C 好学生应该“从不迟到”，用 never。 7. B usually 放在实义动词前；主语 my dad 三单，用 goes。 8. A How often 用于提问频率。 9. B 客观真理用一般现在时，主语 the earth 三单，用 goes。 10. A doesn’t 后面用动词原形 do。 11. B 主语 she 三单，动词用 reads。 12. A often 放在实义动词前；主语 they 复数，用 go。 13. B 主语 he 三单，用 Does 提问。 14. B 主语 my sister 三单，否定用 doesn’t。 15. A often 放在 be 动词 am 之后。 词形填空 1. get 2. drives 3. don’t watch 4. Does; play 5. goes 6. play 7. doesn’t have 8. likes 9. cooks 10. Are 句型转换 1. don’t; walk 2. Does; play 3. How often 4. How does; go 5. never eat 完成句子 1. never late 2. How; usually 3. often goes 4. don’t have 5. How often ( 1 ) 学科网（北京）股份有限公司 $